Recently, when I was working on Go development, I came across a new orm third-party framework gorose. During the use, I found that there is no method similar to beego to directly operate the struct structure. Some APIs use maps to perform database-related operations, so we need to convert struct into maps. Here are the methods I tried to convert two different structs into maps.
mport (
"encoding/json"
"fmt"
"reflect"
"time"
)
type Persion struct {
Id int
Name string
Address string
Email string
School string
City string
Company string
Age int
Sex string
Proviece string
Com string
PostTo string
Buys string
Hos string
}
func main() {
StructToMapViaJson()
//StructToMapViaReflect()
}
func StructToMapViaJson() {
m := make(map[string]interface{})
t := ()
person := Persion{
Id: 98439,
Name: "zhaondifnei",
Address: "Big Sand",
Email: "dashdisnin@",
School: "Guangzhou No. 15 Middle School",
City: "zhongguoguanzhou",
Company: "sndifneinsifnienisn",
Age: 23,
Sex: "F",
Proviece: "jianxi",
Com: "Guangzhou Lamborghini",
PostTo: "Blue Whale XXXXXXXXX",
Buys: "shensinfienisnfieni",
Hos: "zhonsndifneisnidnfie",
}
j, _ := (person)
(j, &m)
(m)
(().Sub(t))
}
1. Transform json through struct, convert json to map
func StructToMapViaJson() {
m := make(map[string]interface{})
t := ()
person := Persion{
Id: 98439,
Name: "zhaondifnei",
Address: "Big Sand",
Email: "dashdisnin@",
School: "Guangzhou No. 15 Middle School",
City: "zhongguoguanzhou",
Company: "sndifneinsifnienisn",
Age: 23,
Sex: "F",
Proviece: "jianxi",
Com: "Guangzhou Lamborghini",
PostTo: "Blue Whale XXXXXXXXX",
Buys: "shensinfienisnfieni",
Hos: "zhonsndifneisnidnfie",
}
j, _ := (person)
(j, &m)
(m)
("duration:%d", ().Sub(t))
}
output:
map[Proviece:jianxi Com: Guangzhou Lamborghini Hos:zhonsndifneisnidnfie Name:zhaondifnei Company:sndifneinsifnienisn Buys:shensinfienisnfieni Age:23 PostTo:Blue Whale XXXXXXXX Address: Dashadi School: Guangzhou No. 15 Middle School City:zhongguoguanzhou Sex:F Id:98439 Email:dashdisnin@]
duration:250467
2. Generate maps through reflection
func StructToMapViaReflect() {
m := make(map[string]interface{})
t := ()
person := Persion{
Id: 98439,
Name: "zhaondifnei",
Address: "Big Sand",
Email: "dashdisnin@",
School: "Guangzhou No. 15 Middle School",
City: "zhongguoguanzhou",
Company: "sndifneinsifnienisn",
Age: 23,
Sex: "F",
Proviece: "jianxi",
Com: "Guangzhou Lamborghini",
PostTo: "Blue Whale XXXXXXXXX",
Buys: "shensinfienisnfieni",
Hos: "zhonsndifneisnidnfie",
}
elem := (&person).Elem()
relType := ()
for i := 0; i < (); i++ {
m[(i).Name] = (i).Interface()
}
(m)
("duration:%d", ().Sub(t))
}
output:
map[Buys:shensinfienisnfieni Name:zhaondifnei City:zhongguoguanzhou Sex:F Proviece:jianxi Com: Guangzhou Lamborghini Id:98439 School: Guangzhou No. 15 Middle School Address: Dashadi Age:23 PostTo: Blue Whale XXXXXXXX Hos:zhonsndifneisnidnfie Email:dashdisnin@ Company:sndifneinsifnienisn]
duration:104239
in conclusion
From comparison, it can be seen that the form conversion through reflection is basically twice as much as that through json form.
The above is all the content of this article. I hope it will be helpful to everyone's study and I hope everyone will support me more.